39 results about "Land quality" patented technology

A tilled land quality evaluation method based on GIS for province-wide land comparison involves province-level parameter macrocontrol and united standard index system, county-level investigated basic data, united modeling and computation of city-level and four-hierarchy quality inspection mode. The concrete step are as follows: dividing index control area by GIS space superposition technology, hierarchical clustering method, determining evaluation factor by main component analysis method, determining weight by fuzzy hierarchy method, standardizing the factor index by segmental interpolation functions, computing index as natural quality etc. by modular design, constructing combined analog system for tilled land quality factor, dividing tilled land quality level by frequency method and uniformly-spaced method. The invention provides scientific basis for differential precise management for tilled land of province-area even whole country, and has significance to promoting reasonable utilization and protection for tilled land resource, ensuring grain safety of country.

The invention discloses an inland saline and alkaline land forestation method which includes the steps: digging a planting pit or planting furrow in a saline and alkaline land; spraying polyurethane solution to the bottom and the inner wall of the planting pit, and solidifying the polyurethane solution to form a pit bottom salt isolation layer and an inner wall salt isolation layer; digging a slope surface in the periphery of the planting pit along the inclination angle of 15-30 degrees, spraying polyurethane solution to the planting pit and the slope surface and solidifying the polyurethane solution to form a salt rejection layer when filling the planting pit with tree seedlings and matrixes and compacting the planted matrixes to be less than or equal to 10cm away from the top of the planting pit; covering the salt rejection layer with soil discharged in digging of the slope surface. According to the method, the salt content of a plant root system within a growth range is reduced, absorption of water and nutrient in the soil by the root system is promoted, inland high cold region oasis saline and alkaline land forestation survival rate and preservation rate are increased, engineering construction cost is saved, land quality is improved, land output is improved step by step, and better social and economic benefits are brought for inland high cold region saline and alkaline landareas.

The invention belongs to tilled land resource evaluation and utilization field and relates to a multi-tier tilled land production capacity checking method based on grade, establishes a quantitative checking model between tilled land index and standard grain production capacity based on tilled land quality evaluation, separately checks actual production capacity, achievable production capacity, theoretical production capacity of tilled land. The actual production capacity of tilled land is checked by actually investigating specimen for establishing model; achievable production capacity is checked by establishing model of utilization index of tilled land and achievable sampling point; theoretical production capacity is checked according to model of natural quality index of tilled land and theoretical sampling point. Different-tier production capacity is compared to compute utilization rate and increase production potential of tilled land, and to provide scientific basis for quality management, protection, utilization efficiency evaluation and moving of tilled land, which has significance to promoting sustainable development of agriculture and assuring grain safety.

The invention discloses a land quality monitoring method based on an aerial hyperspectrum. The method comprises the following steps of step1, collecting aerial hyperspectral data of a land quality monitoring area, and collecting a sample of the land quality monitoring area in the field and carrying out heavy metal element content analysis; step2, pre-processing the aerial hyperspectral data; step3. reconstructing an aerial hyperspectral data spectrum to eliminate radiation distortion of ground and object spectrum caused by various atmospheric components; step4, extracting an aerial hyperspectral image spectrum of a sampling point in aerial hyperspectral remote sensing data; step 5, carrying out spectral transformation and correlation coefficient analysis, obtaining a correlation coefficient between a content and a soil spectral parameter, and finding a sensitive band of a characteristic spectrum; and step6, establishing aerial hyperspectral data to invert a land quality monitoring model, and acquiring a monitored soil nutrient and metal element content data. During application, a wide range of land-based data can be accurately acquired, a workload can be reduced, a land quality monitoring period is shortened, and cost is reduced.

The invention discloses a remote sensing image-based mining area reclaimed land quality automatic evaluation method. The method includes the following steps of: 1, data preparation; 2, mining area reclaimed land quality evaluation index system construction; 3, mining area land reclaimed land quality evaluation index calculation; and 4, mining area reclaimed land quality comprehensive evaluation. According to the remote sensing image-based mining area reclaimed land quality automatic evaluation method of the invention, a comprehensive quality evaluation index system in which index weights can be determined based on an AHP-DEA method is constructed from the perspectives of soil quality, project quality and ecological service value on the basis of the features of mining area land reclamationprojects and according to existing national and local reclamation norms and technical standards. Compared with a traditional land reclamation evaluation system, the method of the invention can bring more comprehensive indexes and more objective results. With the method of the invention adopted, the acceptance and examination of the mining area land reclamation projects can be managed more scientifically and efficiently; the real-time performance and convenience of the reclamation acceptance and examination work can be improved; the data of the projects can be digitized; evaluation models can be informationized; and coordination, management, and analysis can be better facilitated.

The invention relates to a set of evaluation systems for a land degradation degree. At present, the existing land degradation evaluation method has poor operability and practicality and quantitative and visual land degradation degree data can not be formed. According to the invention, the provided evaluation index system aims at collecting land degradation evaluation indexes by applying a generalized induction method to construct a preset index set of land degradation. Experts engaged in research of land degradation are employed; on the basis of the natural condition, the social situation and the land quality in Xinjiang, the preset index set is screened by employing a Delphi method and the structure of the index system as well as weights of all indexes are determined, so that a land degradation evaluation index system of Xinjiang is constructed. And the land degradation degree of Xinjiang is evaluated based on 11 farmland and non-farmland evaluation indexes including vegetation coverage, a land occupation rate of saline alkaline spots, drainage density, landform, a soil texture, a treatment engineering measure, annual precipitation, a crop yield descent rate, gradient, poverty, a treatment engineering measure, and a cultivation measure.

The invention relates to a light movable vegetable waste anaerobic dry fermentation system and a method for anaerobic fermentation by using the light movable vegetable waste anaerobic dry fermentation system. The system includes a pulverizer, a blending pool, a conveyor belt and an anaerobic dry fermentation device, wherein the pulverizer, the blending pool, the conveyor belt and the anaerobic dry fermentation device are sequentially connected; the anaerobic dry fermentation device comprises a plurality of anaerobic reaction bodies which are connected side by side, the anaerobic reaction bodies are provided with a solar panel thermally-insulated chamber as an outer cover, each anaerobic reaction body includes a reaction tank and a gas storage membrane, the adjacent gas storage membranes are connected through connection chains, and the adjacent reaction tanks are connected through connection chains. The system is simple in device and movable, planting and processing vegetable waste generated by an intensive vegetable area or scattered vegetable-growing households are subjected to the anaerobic fermentation to prepare biogas, an organic fertilizer is obtained, energy utilization of the organic waste in the vegetable area is achieved, the environment of the vegetable area is improved, the quality of vegetables is improved, and the land quality in the vegetable area is improved.

The invention discloses a planting technology of alfalfa in a saline and alkaline land. The technology mainly comprises four steps including pre-processing of the saline and alkaline land, sowing, field management, measurement and harvesting, etc. According to the invention, soil compositions and the alfalfa yield are changed greatly after improvement; the highest salt rejection rate in the soil reaches up to 50.22%; dry weight of the unit area of alfalfa increases by 0.21-0.30kg; the water content decreases slightly with the decrease rate of 0.30-2.13%; and the mu yield increases by 139.14-199.33kg. Hence, the technology disclosed by the invention has significant effects in aspects such as increase of the soil utilization rate and improvement of land quality; outstanding achievements can be obtained in plantation of the alfalfa; and during pasture plantation, wind protection and sand stabilization are achieved. Therefore, the technology disclosed by the invention can achieve outstanding economic benefits and social benefits.

The invention relates to an evaluation method for implementing double balance for quantity and quality of tilled land during occupation and supplement, belonging to field of territorial resources management and sustainable utilization and evaluation. In the invention, a model is established to measure and calculates grain production capacity of tilled land of different quality based on stable index for representing grain production capacity of tilled land, constructs model of tillage land quantity for converting to equivalence coefficient. When tilled land quality is superior to supplementary tilled land quality, the grain production capacity is ensured by increasing area of supplementary tilled land during course that the tilled land is occupied by non-agricultural construction, which provides technical support for enforcement of policy of tilled land balance and overall appraisal of quantity and quality of tilled land, thereby ensures grain safety of country.

The invention provides a land quality geochemical survey and acquisition system. The system comprises a digital mobile field investigation system, a wireless communication module is utilized to call server data to download and distribute point location information, a GIS technology and a third-party map service provider are utilized to check and navigate point location positions, a GPS module is utilized to read latitude and longitude and record tracks, and the wireless communication module is utilized to upload data to a cloud platform server database. Simultaneous collection and checking of information are achieved. Paperless operation is achieved, data is uploaded to a server through one key, and dynamic tracking and transparent supervision of sampling work are achieved. Seamless connection and unified management of data between different systems are realized. And the data is integrated in a unified system for management, so that the functions of rapid input and output, rapid query, quality monitoring and the like of information are realized.

The invention belongs to the technical field of computer internet, and particularly relates to a field data acquisition system and method for land quality geological survey, and the system comprises auser terminal, a management terminal and a cloud platform; the management terminal sets a project, a sampling point position and a sampling task; the cloud platform obtains corresponding sampling personnel according to the sampling task and sends the sampling task to the sampling personnel; the user terminal displays a sampling task to sampling personnel, acquires acquired data and track data, and uploads the acquired data and the track data to the cloud platform; the cloud platform generates a track chart according to the track data, and sends the acquired data and the track chart to the management terminal; and the management terminal displays the acquired data and the track chart to a manager for the manager to check and monitor. According to the system and method, informatization management is carried out on the field soil sample collection process, omnibearing monitoring of the sampling process is realized, the efficiency and precision of land quality geological survey work are improved, and the integrity and quality of land quality sample information collection are improved.

The invention provides a Phoebe bournei natural secondary forest health evaluation model. In the health evaluation model, H is a forest health index and represents a comprehensive evaluation value of a health condition; Bj represents a value of a jth index after dimensionalization; Wj represents a total sorting weight value of the jth index; and n is the total index number; and each index comprises unit area accumulation amount, forest stand canopy density, natural updating, forest growth vigor, community structure, forest layer structure, tree species structure, diameter level structure, forest pest and disease damage, forest fire, under-forest vegetation coverage, species diversity, Phoebe bournei mother tree plant number, forest naturalness, forest land quality and litter thickness. According to the Phoebe bournei natural secondary forest health evaluation model, a health evaluation index system and a health evaluation model of the Phoebe bournei natural secondary forest are constructed; the Phoebe bournei natural secondary forest in Jiangxi Province is evaluated; a main countermeasure for promoting health operation is provided according to an evaluation result; and a scientific basis is provided for protection and sustainable operation of the Phoebe bournei natural secondary forest.

A system for commoditizing farmland, for fulfilling futures contracts and for the settlement of farmland futures contracts. The system is a computerized system that includes software code that inputs selected soil data for a tract of land, inputs property boundary line data defining a parcel within the tract of land, overlays the soil data over a selected parcel, analyzes land quality measures based upon the overlay of the soil data with the boundary line data, classifies the parcel based upon the result of the analysis of land quality measures, and assigns a size designation to the parcel.

The invention discloses a filtering device for improving saline and alkaline lands, and belongs to the technical field of saline and alkaline lands. The filtering device comprises a filtering box, a water inlet pipe is arranged at the top of the filtering box, a sedimentation filtering device is arranged on the left side of an inner cavity of the water inlet pipe, a water pipe is arranged on the right wall of the sedimentation filtering device, an electromagnetic valve is arranged on the outer wall of the water pipe, a mixing filtering device is arranged at the right end of the water pipe, a water outlet pipe is arranged at the top end of the right wall of the filtering box, a water collecting pipe is arranged at the bottom end of the right wall of the filtering box, and a water collecting tank is arranged at the bottom of the water collecting pipe. The filtering device is provided with the water collecting tank, plants are conveniently and continuously irrigated, land qualities cannot be affected, the device is convenient to use, washing water can be filtered and reused by a saline and alkaline land washing water recycling device, water resources are saved, water is conveniently taken on site to irrigate the lands, and the filtering device is a water-saving saline and alkaline land improving device which is beneficial to growth of the plants and can reasonably use the water resources.

The invention discloses a land quality geochemical survey soil sample wild storing device which comprises a bottom plate, a slide plate and a top plate. Universal wheels are arranged at the four corners of the lower end of the bottom plate and provided with wheel locks. Supporting columns are arranged at the four corners of the upper end of the bottom plate. Connecting screw grooves are formed inthe top ends of the supporting columns. A fixing groove is formed in the middle of the upper end of the bottom plate. The land quality geochemical survey soil sample wild storing device has the advantages that by arranging the universal wheels, the traditional manual back carrying complexity is avoided, labor is saved, and the device is more convenient to move on a flat road; by arranging a conical groove and a soil blocking cover, soil samples are effectively prevented from being splashed outside in the storage process, the cleanliness of the soil sample storage environment is ensured, and the soil storage efficiency is improved; by arranging eight transparent soil storage bottles, the amounts of the soil samples are controlled in time, the soil samples from eight places can be stored respectively through the device, and the practicability of the device is improved.

The invention relates to a cultivation method of selenium-rich Camellia oleifera, comprising the steps of 1) building a forest land, and conditioning soil; 2) preparing for transplanting; 3) selectingseeds, and transplanting; 4) managing fertilizer application; 5) managing growth. Forest land quality is conditioned, the special selenium-rich nutrient soil and selenium-rich fertilizer are prepared, and therefore, selenium content in trees and fruits of Camellia oleifera is increased; seedlings of Camellia oleifera can adapt to the selenium-rich environment; the demand for nutrients can be ensured; good growth is allowed; tea oil produced with Camellia oleifera planted via the cultivation method is 10% and more as high as that planted via the prior art in terms of selenium content; the cultivation method is particularly applicable to camellia planting in soil selenium-deficient areas, planting of selenium-rich Camellia oleifera can be widely popularize and applied, and safety and nutritional value of edible oil can be improved.

The embodiment of the invention discloses a value evaluation method and device based on urban green land quality-price model. The Value evaluation method comprises the following steps: obtaining a quality index parameter of a greenbelt quality index of a target greenbelt and a resource asset accounting index parameter of a greenbelt resource asset accounting index, and evaluating the greenbelt quality value of the target greenbelt according to the quality index parameter; according to the resource asset accounting index parameter, evaluating the greenbelt resource asset value of the target greenbelt; and determining the total value of the green land according to the green land quality value and the green land resource asset value, so that the key technical problems of urban green land quality value and urban green land resource asset accounting can be solved by defining the category of urban green land resources and the urban green land resource asset accounting index.

The invention discloses an artificial forest land research system and method based on pinus tabulaeformis, and relates to the technical field of forestry. The research system comprises a data acquisition and input module, a controller, a VR simulation module, a forest land quality evaluation module, a growth and harvest prediction module and an operation decision module. The output end of the dataacquisition input module is connected with the input end of the controller through a wireless network, and the output end of the VR simulation module, the output end of the forest land quality evaluation module, the output end of the growth and harvest prediction module and the output end of the operation decision module are electrically connected with the input end of the controller. The systemis based on the growth condition of the Chinese pine, and judges the quality of the artificial forest land in the region. The system can judge the growth income conditions of other commercial crops based on the quality of the artificial forest land, can specify the operation strategy of the commercial crops and improve the planting effect of the crops, and can simulate the planting scenes of different crops through the arrangement of the VR simulation module so as to further improve the planting effect in the future.

The invention belongs to the technical field of soil quality evaluation, and particularly relates to a black land quality comprehensive evaluation method based on aviation hyperspectrum, and the method comprises the following steps: 1, obtaining aviation hyperspectral data; 2, when the aviation hyperspectral data obtained in the step 1 is subjected to soil sampling on the ground, performing soil sampling on the ground to obtain ground data; 3, performing hyperspectral inversion on the soil quality index according to the data obtained in the step 1 and the step 2; 4, establishing an evaluation system by using an analytic hierarchy process, and obtaining the weight of each evaluation system index; 5, calculating the soil quality through comprehensive scoring; and 6, visualizing the soil quality comprehensive scoring result obtained in the step 5. According to the method, various aviation hyperspectral sensors are utilized, visible light-near infrared and thermal infrared bands are covered, the advantages of various sensors are exerted, various types of soil nutrients and environmental indexes are extracted, and the comprehensiveness of evaluation results is guaranteed.

The invention discloses a special high-yield safe fertilizer for an apricot cultivar katy, which is prepared from the following raw materials in parts by weight: 8-10 parts of mock-strawberry pulp, 14-18 parts of biogas fluid, 6-8 parts of scallop shell powder, 40-50 parts of corn starch, 25-35 parts of fermented dry cow dung, 7-10 parts of ammoniated weathered coal, 6-8 parts of humic substances, 12-16 parts of sawdust, 10-12 parts of a compost, 5-6 parts of monoammonium phosphate, 4-5 parts of potassium sulphate, 4-6 parts of potassium nitrate, 3-5 parts of ammonuim humate, 18-24 parts of a soil additive and an appropriate amount of water. The fertilizer disclosed by the invention is rich in fertilizer components and promotes the flowering and fruit setting of the apricot cultivar katy; beneficial microorganisms in the fertilizer can effectively improve the soil, decompose organic matters, reduce heavy metals and pesticide residues in the soil, improve the land quality, and bring reliable assurance to the healthy growth of the apricot cultivar katy; and the addition of various organic raw materials increases the duration time of the fertilizer efficiency, so that the problems such as cost increase caused by multiple fertilizations, and the like are reduced, therefore, the fertilizer is worthy of large-scale popularization and application.

The invention relates to a soil remediation method based on a chemical treatment principle, which comprises a sliding device, a pressing device and remediation devices. The pressing device is arrangedin the sliding device, the remediation devices are uniformly arranged at the lower end of the pressing device, and the remediation devices are rotationally connected with the pressing device. According to the invention, the problems as follows are solved, namely, the existing equipment cannot perform bulking treatment on deep soil in the land when performing chemical treatment on soil, the plowing layer of the soil easily becomes shallower, the aerobic microbial activity of the land and the release of nutrients are reduced, and barren land and reduction of land quality are caused; and meanwhile, chemical agents for improving the soil can only be sprayed to the soil exposed on the surface of the air, and the chemical agents can permeate into the soil within a certain period of time, so that the remediation speed of the chemical agents to the soil is reduced, and the remediation efficiency of the soil is reduced.